10513-0730-A2 AN/PRC-117 Data / Remote Control Cable - J3 This cable provides both a synchronous/asynchronous data interface and RS-232 remote control interface. This is a Y-cable that connects to the front panel Data connector, J3. This cable can be used with the RF-6550F Radio Programming Application. Length of the 10513-0730-A2 is 10 feet. (L1Y) Unused.